PPoossttffiixx 塼塼

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Υե

 Patrik Rak ˤ빪̯ʥ塼ޥ͡㥹塼󥰥르ꥺ
ĤƤΥɥȤλϤޤǤĹ֡Υɤϥץ
⥸塼Ȥ "nqmgr(8)" (new queue manager) Ȥ̾ǻȤȤ
ǤޤPostfix 2.1 ǤϤ줬ǥեȤΥ塼ޥ͡Ǥꡢ
 "qmgr(8)" ȸƤФޤŤ塼ޥ͡ϤФ餯δ "oqmgr(8)"
Ȥ̾ǻȤޤ

ʤŤ PPoossttffiixx 塼ޥ͡֤줿

Ť Postfix 塼ˤ߷׾塢Ա˵뤤Ĥ¤
ޤ

 1. Ʊå transport Ȥä᡼ˤ
    饦ɥӥ򡣥饦ɥӥάϡĤ () Ȥ᡼
    ꥽Ȥ̤ƤޤΤɤȤտޤФޤ
    άȥäƤ᡼פ
    ⤿餷ƤޤޤҤɤ줷Ǥϡ¾
    ᡼뤬¿ˤ⤫餺 1/ λ֤򤵤ʤᡢ
    ᡼뤬ٱ䤷Ƥޤä⤷ޤ

    Victor Duchovni ˡ򸫤Ĥޤ: ̤Υå transport 
    Ȥ뤳ȤǷ˳򤱤ޤPatrik Rak Υ塼Ϥ
     FIFO ȤȤǲ褷ޤ

 2. Ť Postfix 塼2ܤϡХ륯᡼¾
    Ƥ֥åƤޤ礭ٱȤǤPatrik Rak 
    塼ϤФ餷ˡǡԤξʤ᡼뤬Х륯᡼
    ȴ褦ˤޤ

塼ޥ͡㥹塼ưư

ʲʸϤ Patrik Rak 񤤤Τǡ줾ѥ᡼ܺ٤
Ҥ postconf(5) ޥ˥奢ȹ碌ɤǤ

桼δϡȤѲǽΤʤäȤ˼Υå
ˡơoqmgr(8)  qmgr(8) ϤɤƱǤǤ oqmgr(8) 
Υ饦ɥӥȤqmgr(8) ϳߤΥޥåơñ
FIFO ȤäƤ뤳ȤϤ狼Ǥ礦postconf(5) ޥ˥奢ˤϥ桼
γߥޥå˻ȤƤμü꤬񤫤Ƥޤ - ʲ˼
ñʾʳˤϳߤϤޤ

ץޥ٥ΥɥȤˤĤƤϡWietse ȸ路Τ褦ʥ᡼
ȴФʤФޤ [á Ϥä Patrik Τ
äƤǤ礦 -- Wietse] βäǸĤȤ
ʤȻפޤ

ץޤδǤ⡢å塼󥰤ιͤȤˤ
դ­ΤϤޤ󡣸ʣˤʤäƤΤޤ
르ꥺϥ桼򤷤ƤΤƱǤ桼δȥץޤ
ΰ㤤ޤȤ:

 1. 桼ФѸδά: 桼ϥåȼԤˤĤΤäƤޤ
    ץ༫Ȥϥ (1ĤΥåʣΥ֤ʬ䤵졢줾
    å transport ɬפȤʤޤ) ȥ塼ȥ
    (줾ΥȥƱμԤ򥰥롼ײ뤫⤷ޤ) 
    ưޤ qmgr(8) ˤäƳ줿塼¤ñ˥֤Ȥ
    ֤褦ʥԥ¤ޤ

 2. ¤ΰ: ¤ˤäƥå (Ĥޤꥸ) 塼
    줿̤Ȥϸ¤ʤᡢºݤμʣǤ
    ¤ã "֥åƤ" ֤Фơ°ʲˤʤä
    ƤӤΥ֤ɬפޤ

 3. ꥽¤ΰ: Ԥɤ߹ޤȤϸ¤ʤᡢºݤμ
    ʣǤΤᡢ줾Υåˤϥɤ߹ޤԤ
    ¾˥ե˻ĤԤ뤫⤷ޤ󡣤 a) ץꥨץƥ
    르ꥺϼºݤμԿǤϤʤѤȤäưɬפꡢ
    b) Ʊ˥ɤ߹ޤԤ transport ȤΥס򰷤Ȥ
    ɬפ̤ʥɤꡢc) Хåǥ˼Ԥɤ߹뤳Ȥ
    ɬפǡŬڤʤȤˤư륳ɤ̤ʥɤ뤳Ȥ
    ̣ޤ

 4. ΨŪư: 狼äƤ¤ǤϡפʤΤϽûλ֤
    (ľܤ⤷ϾʤȤѷ׻ (amotized complexity) Ȥ줿
    Ȥ) 뤳ȤǤߤΥ֤˳ޤŬʸϤɤ줫
    ֤ˤϡƤ transport ֤Фɬפ
    ޤ (ǰξ -  ºݤˤϤäȤ褤)ϼ
    塼ȥ꤬ФȤ󤪤ʤ뤿ᡢå˲ä
    СإåɤǾˤΤŬڤȻפޤθ䥭å
    Ͼ狼ˤΤǤ

ݥ 2  3 ϼ () ʣˤƤΤǡºݤΥǥ
ȤʬǤ塼륢르ꥺ༫Ȥ򤹤Τ (ϼºݤ
׹ͺȤʬǤ) ʤñǤȿƤޤ

